How do I write an interior design quotation?

List the work room by room with size, unit, rate and amount, then add materials and brands, exclusions, a payment schedule tied to stages, the time to finish, warranty and GST.

What is the GST rate on interior work?

Usually 18 percent, billed as a works contract under SAC 9954 when materials are included. Confirm the code with your CA.

What payment schedule do interior designers use?

Often 10 to 20 percent to book, 40 to 50 percent at production or material delivery, 30 percent on installation and the rest on handover.

Interior design quotation format, with a sample

By the Inbecto team · Updated 12 Oct 2026

A good interior quotation lists the work room by room, each line with a description, size, unit (sq.ft, running ft or number), rate and amount, then the materials and brands, what is not included, the payment schedule, the time to finish, the warranty, and GST. Sending it as a link the customer can accept saves days of back and forth.

What to include

Your company name, logo, GSTIN, phone and address
Customer name, site address, quotation number, date and how long it is valid
Work room by room, each line with description, size, unit, quantity, rate and amount
Materials and brands: plywood grade (for example BWP to IS 710), laminate thickness, hardware brand, paint brand
What is not included: civil work, electrical fittings, appliances, transport, and so on
Payment schedule tied to stages of the work
Time to finish, warranty, and taxes
Space for the customer to accept

Sample, room by room

Sample interior quotation lines (rates are only an example)
Room	Item	Size	Qty	Rate (₹)	Amount (₹)
Master bedroom	Wardrobe with loft, laminate finish	6 × 9.5 ft	57 sq.ft	1,400	79,800
Master bedroom	Bed with storage, queen	5 × 6.5 ft	1 no.	38,000	38,000
Kitchen	Base units, L-shape	8 + 6 ft	14 rft	2,800	39,200
Kitchen	Wall units	8 + 4 ft	12 rft	2,200	26,400
Living room	TV unit with back panel	8 × 7 ft	56 sq.ft	1,200	67,200
Living room	Gypsum false ceiling with cove	14 × 16 ft	224 sq.ft	110	24,640

Payment schedule

Tie each payment to something the customer can see. A common pattern is 10 to 20 percent to book, 40 to 50 percent when materials reach the site or production starts, 30 percent on installation, and the last 5 to 10 percent on handover.

GST on interior work

Interior fit-out with materials is usually billed as a works contract, with GST at 18 percent under SAC 9954. Design or consultancy alone is a service at 18 percent too. Ask your CA for the right code for your work, and show the GST separately on the quotation.

Making it in Inbecto

Pick the customer, or add them with their phone number
Add rooms, then lines from your price list; sizes work out the square feet or running feet
Add a drawing to each wardrobe, kitchen or window line, drawn to its size
Set the payment schedule and terms once; they fill in on every quotation
Send it on WhatsApp as a link; the customer accepts or asks for a change, with no login